18392840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6863}}^1$

素因数の和:6941

約数の個数: 32

約数和(自身を含む): 42007680

約数和(自身を除く): 23614840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6863, 13726, 27452, 34315, 54904, 68630, 137260, 274520, 459821, 919642, 1839284, 2299105, 3678568, 4598210, 9196420, 18392840]

約数ペア:

[(1, 18392840), (2, 9196420), (4, 4598210), (5, 3678568), (8, 2299105), (10, 1839284), (20, 919642), (40, 459821), (67, 274520), (134, 137260), (268, 68630), (335, 54904), (536, 34315), (670, 27452), (1340, 13726), (2680, 6863)]